Leandro V. Locsin (August 15, 1928 – November 15, 1994) was a Filipino architect, artist, and interior designer known for his use of concrete, floating volume and simplistic design in his various projects. An avid collector, he was fond of modern painting and Chinese ceramics. He was proclaimed a National Artist of the Philippines for Architecture in 1990 by the late President Corazon C. Aquino. Life and career Leandro Valencia Locsin was born on August 15, 1928, in Silay, Negros Occidental, a grandson of the first governor of the province. He completed his elementary education at De La Salle College in Manila before returning to Negros due to the Second World War. Locsin then returned to Manila to finish his secondary education in La Salle and studied Pre-Law before shifting to pursue a Bachelor's Degree in Music at the University of Santo Tomas. Although he was a talented pianist, he later shifted to Architecture, one year before graduating. He married Cecilia Yulo, and one of their two children is also an architect. An art lover, Locsin frequented the Philippine Art Gallery, where he met the curator, Fernando Zóbel de Ayala y Montojo. The latter recommended Locsin to the Ossorio family that was planning to build a chapel in Negros. When Frederic Ossorio left for the United States, the plans for the chapel were canceled. In 1955, Fr. John Delaney, S.J., then Catholic Chaplain at the University of the Philippines - Diliman, commissioned Locsin to design a chapel with an open plan and can easily accommodate 1,000 people. The Church of the Holy Sacrifice is the first round chapel in the Philippines to have an altar in the middle, and the first to have a thin shell concrete dome. The floor of the church was designed by Arturo Luz, the stations of the cross by Vicente Manansala and Ang Kiukok, and the cross by Napoleon Abueva, all of whom are now National Artists. Alfredo L. Juinio served as the building's structural engineer. Today, the church is recognized as a National Historical Landmark and a Cultural Treasure by the National Historical Institute and the National Museum, respectively. On his visit to the United States, Locsin met some of his influences, Paul Rudolph and Eero Saarinen. It was then he realized to use concrete, which was relatively cheap in the Philippines and easy to form, for his buildings. In 1969, he completed what